function say(){}
console.log(say.toString());
console.log(say.valueOf());
console.log(say.constructor);
var o={
 name:'lisi'

}
console.log(o.toString());
console.log(o.valueOf());
console.log(o.constructor);


console.log(typeof say);
var stu1=new Object();
stu1.name='tom';
stu1.age=20;
console.log(stu1);
console.log(typeof stu1);

var stu2={
	name:'terry',
	age:20,
	gender:'men'
}

console.log(stu2);
console.log(typeof stu2);




